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Richards Wilcox Manufacturing Co

Richards W

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2372199A	Conveyer	Expired / Lapsed	1939-10-21	1945-03-27	0	Details
US2003399A	Door operator	Expired / Lapsed	1932-05-02	1935-06-04	0	Details
US1433647A	Trolley track	Expired / Lapsed	1922-03-23	1922-10-31	0	Details
US1152630A	Bracket for trolley-tracks.	Expired / Lapsed	1915-02-15	1915-09-07	0	Details